Clamp



Nov. 19, 1929. H. s. JANDus CLAMP Filed Jan. 28. 1928 PatentedNov. 19,1929 j EnBEnT'sfJANDUs, orf r DETROITQMICHIGAN, AssIGNOR, BY 'MnsinAssfeniarinitis;

' T'OGENERALSPBING BUMPER. CORPORATION, A" CORPORATION orMrcHIcfAn..r Y

- .Appiieationmed January 28, `192s. serial Na 25,0;160.

i I i This invention relates to a Yclamp andmore multiple platel clamp,the several plates of which are combined-to produce an attractivedesign.'v A further object is togproduce a clamp'plat'e having a:recessedfsurface of ir-V regularand/or-nar'row design which can beconvenientlyA polished orl otherwise prepared for ilse. AAnother objectis to provide a clamp for' holdingthe bars of a bumper in properfspacedrelation and such a clamp whichmay be easily and quickly'apphed to thebars. Y f' -Further and more yor less limited objects will be apparentfrom the drawings, the followingy description' and the use of articlescoveredby'the appended claims.

-In thedrawings Figil represents a fractional front elevation of a pairlof bumper bars, showing a clamp embodying my invention attachedthereto; Fig; 2v shows a plan view of the rassembly shown in Fig. 1;Fig.v 3is a sectional view taken on a vertical line through the centerof the clamp shown in Fig. l; Fig. 4 is a view similar to Fig. 3 with Ythe plates of the clamp separated from each other and from the bars.

In the following description I shall refer to the impact surface of the'bumper as the front surface and the terms front7 and rear7 will be usedin view Of'such assumption. `It is not, however, thereby intended thatthe Vuse of the clamp be limited to any l particular position on thebumper or in relation to the vehicle. y

Of the reference characters l and 2 denote vertically spaced impact barsof a bumper, having suitable front surfaces which are here shown asgrooved. The numeral 3 indicates Y support bars and having surfacesadapted to bear upon the adjacent edges of the said bars. Thefrontsurface offthe 4clamp l Sis shown as having afrfaised edge 5 which maybe of any configuration to give the 'Iney i, 'I v` chanical andorna'mental4 effect desired.` .This raised edge is herein yshown asextending around thelouter edge of the plate,leaving a recessedordepressed surface 5a Vwithin the raised edge'. 1 The outer-.plate 6rhas a rear-` surface. 7 adapted to bear upon` the depressed surfaceofthe clamp plate 3. 7 The outer surf; face of the plate 6 maybe of asuitable con-v figuration to give the desired ornamental' ef-` 1 feet incombination with the' plate ,3. At;

the central portion' of the rear surface ofthe plate V6 there is shown arearwardly project# 65" ing portion 8, preferablyrectangular,adaptved'to extend through thesuitablyj'shaped aperture 9 inthe plate 5.A' rearfplate1.0v which'may be of any suitable shape,-is adapted tob'earvupon ythe rear surfaces of the impact bars in a position betweenthe rearwardly extending Alugs4, 4. Abolt l1 passes through an aperturein the rear `plate 10 and is threaded into a hole inthe rearwardlyprojecting portion` 8 of the plate ,6.1 By` tightening the bolt llthe-washer or shoulder l2 will bear upon the rear surface ofthe rearplate l() and the two front plates will be drawn toward the'rear plateto hold th I impact bars in their proper position.

If the ornamental plate 6 and the clamp plate 3 arecast in onepiece itisvery diflicult to polish vorotherwise prepare thefrecessed portion 5a. Aclamp plate using my -invention may have itsseveral parts prepared foruse by polishing, painting orl other means. l These finished kparts maybe then assembled'` to formthe'clamp giving 4the Vdesired ornamentalappearance. y g `f The-plate 3, providing a broad Vsurface of contact,need not be of material which will withstand tensile" stresses andthesmaller plate 6 maybeniade of aV different material and one which wouldprovide asuitable anchor for the threads of the bolt fll. v Ifdesirable, however, the increased strength ofthe plate 6 may be obtainedbyincreasing' the thickness 'o'f that'plate.* i

The projection 8 andthe aperture 9 are preferablyf rectangular, -or ofsome other leo angular form, in order that the plate 6 will vbepreventedfrom turning With the bolt 1l.

It is apparent that many other ornamental configurations may be used forboth the plateak my invention being particularly applicable VWherewerthe shape` of ktheassembled parts is such that narrow7 or irregular Yrecessed surfaces are formed.v The desired ultimate designmay .be madeup of any suitable'nurnber of complementary plates 'Which lmaybe'interengaged to produce suchk design, or the plates may beinterchangeable to give, different effects With different combinations'-of complementary plates. lt is furthery ap- `parent that more than tWoplates may be used v `to make up ythe complete design,-v and that y[these plates may beassem'bled one upon another-.or more thanone uponone plate.

is also apparent thatthe clamp plates embodying my invention maybe usedWith other Y arrangements of .bumpery bars and in order tol-do so theymaybe suitably shaped toprovide the Vproper bearing surfacesupon suchbars.v W

Having thus described iny invention, what Iclairnis: y. p1-j l. Amultiple plate clamp for bumper bars comprising a plate adapted to bearupon the bars to be clamped, an ornamental plate. adapted to.` bearupon,v the first mentioned plate,

' and "ha-ving an v angular,projectingl portion adapted to pass throughan angular aperture in said first mentioned; plat-'epa plate adaptedtobear upon the rear surfaces of the said bars, and means for drawingsaid plates together..

- A clarnp plate comprising-a,platehavs inga recessed portion'on itsfron-t surface and adapted vatits'rearsurface to bear upon the frontsurfaces of adjacent bars, a plate adapted to bear upon saidk recessedsurface,

` and means for drawing said plates toward each other. Y

A multipleA section ornamental clanip plate comprising a plate adaptedto bear upon the front surfaces of` adjacent bars, saidjplate havingaraisedornarnental por-l l tionanda depressed surface, an ornamentalplate. adapted to bear upon said depressed 5 surface, a rear `bar'adapted to bear upon the rearl surfaces of said bars, and rneans fordrawing said platesvtoward each other. ,f 4. A multiple plate clamp forbars. coinprising a plate adapted to bear upon the trontsurfaces ofsaid' bars, ,as econd plate rearwardly extending portions adapted toext-end between and bear upon the edges of said bars, a secondfplateadapted'to' exert a pressure upon said firstunentioned plate and havinga threaded aperture in its rear portion adapted to, receive a boltVstem, a-third plate adapted to bear 'lupon'z-the .rear surfaces of saidbars, and a bolt adapted to cooperate thein toward each other. 6. Amultiple bumper bars comprising a plate having an angular aperturetherein andhaving surfaces adapted to bearl upon .the front surfaces ofsaid bars, a second plate adapted to bear upon said irstfrnentionedplateand having a rear-` with said second and third platestovdravv e ,Ij f late .clarnp'V g-for use" on Wardfly projecting portion adapted toextend within saidangnlar kaperture and to cooper-, ate therewith toprevent relative `rotary movement of said plates,v a plateadapted vto.bear upon the. rear surfacesfof said bars, and

a bolt adaptedv to be threaded .intofan 'aper.,

ture in said second plateand to draw plates towardeach other. i

` 7- A mutt-ple Plate. Clamp@ for ilse" bumper-bars comprising a, plateadapted vto bear upon saidl bars, a second platelof inf-f creasedstrength.adaptedto bear uponrsaid.

first mentioned .plate and having-.a threaded aperturel in itsrea-rgportion' adapted to rez ceive thestern ofa-a boltJv a their/d5plate adaptedV t0. be-m1110011 the rear-.Surfaces Ofleaid bars and abolt cooperating Withsaid secend-jand Y third plates tojdraW them towardeachother. Y 8. A. .c,1amp--comp.risi11s .auf .ornamental Plat-e adaptedt0 bear 11p-,01.1. thefrort. Surfaes of plates to lbe {clamped, saidvornamental Signature. .l

neuster s. JANDns.

adapted toeXert a 'pressure upon saidfiirst j mentioned '-plate, saidsecond plate` having athr'elvded aperture; in its, rear fportion,a

third plate4 adapted to bearon the rear surfaces of said bars,.and. abolt adapted, tofcos.

operate Vwith said second and third .plates'to draw `thern toward leachother.

5. A multiple plate clamp for spaced bars 'Y comprising a plate adaptedto' bear upon the vfront surfaces,V of saidbars, saidplate having iso

